Unkillable flukes

[Wildreefs]

so I wanted to set up a second quarantine tank, behind I had the equipment. Started with new water, but moved a small life of rock from other quarantine tank to it for bio filter.

I wanted to see if it can handle ammonia yet, so I dosed pure ace hardware ammonia, to .5 ppm, to later test and see if it can bring it to zero (challenge the system as dan from seahorse source puts it)

While it didn’t handle the ammonia later, what I did find were hundreds of dead flukes in the water, floating around edges of tank. This rock had been through general cure with fish in it, and no new additions.

Seems to me to prazi didn’t kill these guys, but the ammonia surely did.

Now are they def flukes? Not sure. Clear, opaque, contact lense shaped pieces, hundreds of them suddenly floating at the surface hours after ammonia was brought purposely to .5

Was a new quarantine tank, no dirt or detritus, and new water, just a rock moved from one tank to the other.

Any thoughts

 

[Big G]

Dead flukes usually are sesame seed shape and white-ish. "Clear" sounds more like maybe flatworms. Do they look like this?

 

[Wildreefs]

Dead flukes usually are sesame seed shape and white-ish. "Clear" sounds more like maybe flatworms. Do they look like this?

Whitish would be a good word. Also very much like sesame me shape, oval like.

They were soft, I can pick them up and they will fall apart in my hand, perhaps the ammonia just weakened them up.

There has never been anything but fish in tank, no inverts, corals, etc., so I can’t see there being flatworms